Restructuring And Other Impairment Charges (Schedule Of Restructuring And Other Impairment Charges) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Apr. 01, 2012	Mar. 27, 2011
Restructuring Cost and Reserve [Line Items]
Restructuring and other impairment charges	$ (838)	$ 595
2012 restructuring charges [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	605
2011 Restructuring Program [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	488
2007 Arrow Integration Program [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ (1,931)	$ 595